public TSVector2 GetPosition(FP time)
{
bool flag = this.ControlPoints.Count < 2;
if (flag)
{
throw new Exception("You need at least 2 control points to calculate a position.");
}
bool closed = this.Closed;
TSVector2 result;
if (closed)
{
this.Add(this.ControlPoints[0]);
this._deltaT = 1f / (float)(this.ControlPoints.Count - 1);
int num = (int)((long)(time / this._deltaT));
int num2 = num - 1;
bool flag2 = num2 < 0;
if (flag2)
{
num2 += this.ControlPoints.Count - 1;
}
else
{
bool flag3 = num2 >= this.ControlPoints.Count - 1;
if (flag3)
{
num2 -= this.ControlPoints.Count - 1;
}
}
int num3 = num;
bool flag4 = num3 < 0;
if (flag4)
{
num3 += this.ControlPoints.Count - 1;
}
else
{
bool flag5 = num3 >= this.ControlPoints.Count - 1;
if (flag5)
{
num3 -= this.ControlPoints.Count - 1;
}
}
int num4 = num + 1;
bool flag6 = num4 < 0;
if (flag6)
{
num4 += this.ControlPoints.Count - 1;
}
else
{
bool flag7 = num4 >= this.ControlPoints.Count - 1;
if (flag7)
{
num4 -= this.ControlPoints.Count - 1;
}
}
int num5 = num + 2;
bool flag8 = num5 < 0;
if (flag8)
{
num5 += this.ControlPoints.Count - 1;
}
else
{
bool flag9 = num5 >= this.ControlPoints.Count - 1;
if (flag9)
{
num5 -= this.ControlPoints.Count - 1;
}
}
FP amount = (time - this._deltaT * num) / this._deltaT;
result = TSVector2.CatmullRom(this.ControlPoints[num2], this.ControlPoints[num3], this.ControlPoints[num4], this.ControlPoints[num5], amount);
this.RemoveAt(this.ControlPoints.Count - 1);
}
else
{
int num6 = (int)((long)(time / this._deltaT));
int num7 = num6 - 1;
bool flag10 = num7 < 0;
if (flag10)
{
num7 = 0;
}
else
{
bool flag11 = num7 >= this.ControlPoints.Count - 1;
if (flag11)
{
num7 = this.ControlPoints.Count - 1;
}
}
int num8 = num6;
bool flag12 = num8 < 0;
if (flag12)
{
num8 = 0;
}
else
{
bool flag13 = num8 >= this.ControlPoints.Count - 1;
if (flag13)
{
num8 = this.ControlPoints.Count - 1;
}
}
int num9 = num6 + 1;
bool flag14 = num9 < 0;
if (flag14)
{
num9 = 0;
}
else
{
bool flag15 = num9 >= this.ControlPoints.Count - 1;
if (flag15)
{
num9 = this.ControlPoints.Count - 1;
}
}
int num10 = num6 + 2;
bool flag16 = num10 < 0;
if (flag16)
{
num10 = 0;
}
else
{
bool flag17 = num10 >= this.ControlPoints.Count - 1;
if (flag17)
{
num10 = this.ControlPoints.Count - 1;
}
}
FP amount2 = (time - this._deltaT * num6) / this._deltaT;
result = TSVector2.CatmullRom(this.ControlPoints[num7], this.ControlPoints[num8], this.ControlPoints[num9], this.ControlPoints[num10], amount2);
}
return(result);
}
public TSVector2 GetPosition(FP time)
{
TSVector2 temp;
if (ControlPoints.Count < 2)
{
throw new Exception("You need at least 2 control points to calculate a position.");
}
if (Closed)
{
Add(ControlPoints[0]);
_deltaT = 1f / (ControlPoints.Count - 1);
int p = (int)(time / _deltaT);
// use a circular indexing system
int p0 = p - 1;
if (p0 < 0)
{
p0 = p0 + (ControlPoints.Count - 1);
}
else if (p0 >= ControlPoints.Count - 1)
{
p0 = p0 - (ControlPoints.Count - 1);
}
int p1 = p;
if (p1 < 0)
{
p1 = p1 + (ControlPoints.Count - 1);
}
else if (p1 >= ControlPoints.Count - 1)
{
p1 = p1 - (ControlPoints.Count - 1);
}
int p2 = p + 1;
if (p2 < 0)
{
p2 = p2 + (ControlPoints.Count - 1);
}
else if (p2 >= ControlPoints.Count - 1)
{
p2 = p2 - (ControlPoints.Count - 1);
}
int p3 = p + 2;
if (p3 < 0)
{
p3 = p3 + (ControlPoints.Count - 1);
}
else if (p3 >= ControlPoints.Count - 1)
{
p3 = p3 - (ControlPoints.Count - 1);
}
// relative time
FP lt = (time - _deltaT * p) / _deltaT;
temp = TSVector2.CatmullRom(ControlPoints[p0], ControlPoints[p1], ControlPoints[p2], ControlPoints[p3], lt);
RemoveAt(ControlPoints.Count - 1);
}
else
{
int p = (int)(time / _deltaT);
//
int p0 = p - 1;
if (p0 < 0)
{
p0 = 0;
}
else if (p0 >= ControlPoints.Count - 1)
{
p0 = ControlPoints.Count - 1;
}
int p1 = p;
if (p1 < 0)
{
p1 = 0;
}
else if (p1 >= ControlPoints.Count - 1)
{
p1 = ControlPoints.Count - 1;
}
int p2 = p + 1;
if (p2 < 0)
{
p2 = 0;
}
else if (p2 >= ControlPoints.Count - 1)
{
p2 = ControlPoints.Count - 1;
}
int p3 = p + 2;
if (p3 < 0)
{
p3 = 0;
}
else if (p3 >= ControlPoints.Count - 1)
{
p3 = ControlPoints.Count - 1;
}
// relative time
FP lt = (time - _deltaT * p) / _deltaT;
temp = TSVector2.CatmullRom(ControlPoints[p0], ControlPoints[p1], ControlPoints[p2], ControlPoints[p3], lt);
}
return(temp);
}
